This Calcium-K module transforms your normal astronomical telescope into a Ca-K solar telescope. It will be very easy: Put the Ca-K module into the 2" focuser of your telescope, and you are ready for solar observing in the light of the Calcium-K wavelength.

Internal narrowband filters allow for <2.4 Angstrom bandpass. Primarily an imaging systems due to the difficulty of many to visually see in CaK. To be used on telescopes with <100mm aperture. Full disk image on focal lengths <1200mm ... Learn More